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Finding the Fourth Proportional to 57,062.76, 85,602.32 and 17,623.20

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Solution

The fourth proportional to 57,062.76, 85,602.32 and 17,623.20 is: 26,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,062.76 : 85,602.32 = 17,623.20 : x
  2. Step 2: Convert to fraction form
    57,062.76/85,602.32 = 17,623.20/x
  3. Step 3: Cross multiply
    57,062.76x = 85,602.32 × 17,623.20
  4. Step 4: Simplify right side
    57,062.76x = 1,508,586,805.82
  5. Step 5: Solve for x
    x = 1,508,586,805.82/57,062.76
  6. Step 6: Final answer
    x = 26,437.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.